Author(s)

Wenhui Ouyang ¹

Affiliation(s)

¹ Preparatory Education, Yunnan Minzu University, Kunming, Yunnan, 650500, China

Corresponding Author

Wenhui Ouyang

ABSTRACT

The scenario of coils moving in and out of the magnetic field boundary is a combination of magnetism, electricity, mechanics, motion and geometry problems. It is the main way to test the understanding of electromagnetic induction in high school physics. Students are required to have a comprehensive ability to analyze problems. Nevertheless, it is a variable motion with a changing acceleration. To discover its kinematical equations, integration is needed, which is difficult for high school students to analyze this kind of motion in detail. They can only consider qualitatively. But sometimes, qualitative analysis alone is not enough for such problems. Even high school teachers may feel troubled. Besides, there are few literatures that specifically study the kinematical equations of electromagnetic damped motion. In this paper, specific examples will be given to study the kinematical equations about rectangular metal coils frictionlessly moving in and out of a large enough area with uniform magnetic filed. Common relationship between the speed and the position of circular metal coils and triangular metal coils moving in and out of the boundary of uniform magnetic field is described. The general method for solving such problems is summarized, so that high school students can learn this part of content better.

KEYWORDS

Rectangular coil; Circular coil; Triangular coil; Electromagnetic damping; Integral form

CITE THIS PAPER

Wenhui Ouyang, Analysis of a Kind of Electromagnetic Damped Motion Process. Curriculum and Teaching Methodology (2024) Vol. 7: 155-163. DOI: http://dx.doi.org/10.23977/curtm.2024.070824.

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